It is true that Sarah's maximum heart rate over this twenty-year period will have decreased by approximately 8%.
How is the percentage decrease computed?The percentage decrease is determined by ascertaining the reduction or difference in heart rate at the beginning and at forty.
This difference becomes the numerator of the division operation by the heart rate at the beginning and then multiplied by 100.
Sarah's heart rate at twenty years = 193 beats per minute
Sarah's heart rate at forty years = 178 beats per minute
Difference (Decrease) in heart rate = 15 beats per minute (193 - 178)
Percentage decrease = 7.77% (15/193 x 100)
= 8%
Thus, we can conclude that Sarah's heart rate has decreased by about 8%.
Learn more about percentage decreases at https://brainly.com/question/14808025
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Using diagonals from a common vertex, how many triangles could be formed from the polygon pictured below?
Using diagonals from a common vertex, the maximum number of triangles that will be formed is 5 triangles.
The given polygon is irregular heptagon (7 unequal sides).
The given polygon is irregular and the maximum number of triangles that will be Formed is explained as follows;
Choose one common vertex in the polygonDraw a diagonal line to meet other vertices from one common vertexThe maximum number of triangles that will be formed is 5Alternatively, we can use the following formula;
number of triangles formed = 7 - 2 = 5 triangles
Thus, using diagonals from a common vertex, the maximum number of triangles that will be formed is 5 triangles.
Learn more here:https://brainly.com/question/3700915
The time it takes to travel to a destination varies inversely with the average speed. It takes two hours when the average speed is 40mph.
If the average speed changes to 80mph, what is the new travel time?
Answer:
1 hour
Step-by-step explanation:
The time it takes to travel to a destination varies inversely as its speed
T= k/S
K= TS
Time= 2 hours
Speed= 40mph
K= 2×40
= 80
Therefore if the average speed changes to 80mph then the new travel time can be calculated as follows
T= 80/80
= 1 hour
Hence the new travel time is 1 hour
English alphabets ....letters ?
Step-by-step explanation:
a e I o u y are all vowels if that helps
Which value of "X" is a solution to this equation?
4x2 +22x +10
Answer:
Two solutions: X = -5 and X = -0.5
Step-by-step explanation:
4x^2 + 22x + 10 = 0 // divide by 2
2x^2 + 11x + 5 = 0
delta = 11^2 - 4 * 2 * 5 = 121 - 40 = 81
sqrt(delta) = 9
x1 = (-11 - 9) / 4 = -5
x2 = (-11 + 9) / 4 = -0.5
help me please???????
Answer:
c
Step-by-step explanation:
its c because I'm a scholar B)
7. The price of a bike at Store A is 5/6 the price at store B. The price at store A is $150.60. Write and solve an equation to find out how much the bike is at store B. How much did you save by buying the bike at Store A.
As a little tip that's helped me personally when I was taking algebra, making equations for word problems feels a lot easier when you "translate" equations you make into words to make sure that you're using the right equation.
Let's boil down what the question tells us. 5/6 of the price tag of a bike from Store B is the price of a bike from Store A, which is $150.60. Let's use the variable 'b' to represent the price of Store B's bike.
[tex]\frac{5}{6}[/tex] * b = 150.60
Try "translating" the equation above. "5/6 of the price of a Store B bike is equal to 150.60." That seems about right, doesn't it? Let's isolate 'b' so we can get an official answer.
Multiply both sides by 6 to get rid of the denominator:
[tex]\frac{5b}{6}[/tex] * 6 = 150.60 * 6
5b = 903.6
Divide both sides by 5 to get rid of b's coefficient:
[tex]\frac{5b}{5}[/tex] = [tex]\frac{903.6}{5}[/tex]
b = 180.72
The price of a bike from Store B is $180.72
If you need any help on anything I just did here, don't be afraid to ask. Good luck on your Algebra endeavors!
- breezyツ
. Write an inequality for each
sentence:
CA. You must be older than 13 to
play in the basketball league.
B. To use one stamp, your
domestic letter must weigh
under 35 ounces.
C. You must be over 48 inches
tall to ride the roller coaster.
help no links please
Answer:
Impossible
Step-by-step explanation:
Good luck
Akiko is making a pizza. The radius of the pizza is 19 inches. What is the circumference of the pizza (use 3.14 for pi and round to nearest tenth)?
Answer:
≈119.3
Step-by-step explanation:
The area for circumference is as follows:
[tex]C = 2\pi r\\or\\C = d\pi[/tex]
The above equations mean the same thing, because the diameter is just 2 times the radius.
Anyhow, we insert this value into the equation...
[tex]C = 2\pi(19)\\C = 38(3.14)\\C = 119.32\\[/tex]
This rounds to:
≈119.3
WHICH ARE A PROPORTIONAL RELATIONSHIP PLS
Answer:
Graph E
You're welcome.
what is?
[tex] \frac{x}{y} + x[/tex]
Answer:
[tex]\frac{x+xy}{y}[/tex]
Step-by-step explanation:
Given
[tex]\frac{x}{y}[/tex] + x
Multiply x by [tex]\frac{y}{y}[/tex] to create a common denominator
= [tex]\frac{x}{y}[/tex] + x × [tex]\frac{y}{y}[/tex]
= [tex]\frac{x}{y}[/tex] + [tex]\frac{xy}{y}[/tex]
= [tex]\frac{x+xy}{y}[/tex]
HELP ME PLEASE
In square PQRS the measure of <PRQ is 45°. What is the measure of <PRS in degrees?
Answer:
<PRS = 45
Step-by-step explanation:
In a square, all 4 angles are complementary so:
<PRS + <PRQ = 90
<PRS + 45 = 90
<PRS = 45
someone solve this and tell me steps
Answer:
m<A = 35
m<B = 55
Step-by-step explanation:
Complementary angles mean the 2 angles add up to 90 so:
y - 16 + y + 4 = 90
2y - 12 = 90
2y = 102
y = 51
m<A:
y - 16
51 - 16
35
m<B:
y + 4
51 + 4
55
The table represents Ginny's check register. Her checking account had a balance of $478.25 on March 11. Use the information in the check register to determine the balance of Ginny's checking account after the transaction on March 30. Enter your answer in the box
Answer:
$430.35
Step-by-step explanation:
you have to subtract the 2 withdrawls, and then add 25 for the deposit to get the total amount
Mhanifa can you please help? Look at the picture attached. I will mark brainliest!
Answer:
(2,1)
Step-by-step explanation:
Answer:
Diagonals of a parallelogram bisect each otherGiven vertices:
(-2,-1), (1,3), (6,3), (3,-1)Plot the points.
We see the diagonals are:
(-2,-1) (6,3) and (1,3), (3,-1)The midpoint of any diagonal is the intersection of the diagonals.
Use midpoint formula to find the coordinates:
x = (x₁ + x₂)/2 = (-2 + 6)/2 = 4/2 = 2y = (y₁ + y₂)/2 = (-1 + 3)/2 = 2/2 = 1The point is (2, 1)
add me on sn4p h4h4...... sophia_ordaz12
Answer:
ok
Step-by-step explanation:
help!! i cannot figure this out
Answer:
A. 12 miles
B. 9 miles
C. 2 hours
D. 5 hours
E. Max did not move
F. 9 hours
G. 5 hours
hope this helps :)
Step-by-step explanation:
A computer lab has an average of 5 students per hour. Find the probability that
there will be exactly 8 students in the lab for a certain hour
Answer:
prob. (8std.)=8/(5+8)
I need help
What is y
Answer:
7
Step-by-step explanation:
7 and y are the same i think
-
Evaluate the expression for m
=7 and n = 10.
m + n =
Answer:
7 + 10 = 17
Step-by-step explanation:
Hey there!
m + n
= 7 + 10
= 10 + 7
= 17
Therefore, your answer is: 17
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
I need help with my hraph
Two intersecting segments form the diagonals of a quadrilateral. What additional information do you need to
know about the diagonals to prove that the quadrilateral is a parallelogram?
a.they must be perpendicular
b.they must bisect each other
c.they must intersect in the center of the quadrilateral
d.they must be congruent
Answer:
B. They must bisect each other
Step-by-step explanation:
Found the answer on quizziz
The area of a rectangle is 325 cm^2. What is the area of a rectangle in cm^2 with
sides 3 times as large?
i’m stuck, pls help
Answer:
2926 cm²
Step-by-step explanation:
The area of a rectangle is 325 cm^2. What is the area of a rectangle in cm^2 with sides 3 times as large?
Step 1
A rectangle has both Length and Width
Let us assume the Length = Width
The area of a rectangle is 325 cm²
Area = Length × Width
325 cm² = L²
L = √325 cm²
L = 18.027756377 cm
Approximately = 18.03 cm = Widtdh
Step 2
What is the area of a rectangle in cm² with sides 3 times as large?
From Step 1
L = 18.03cm
3 times as large = 18.03 cm × 3
= 54.09 cm
The Area for this rectangle
= A = L²
A =( 54.09 cm)²
A= 2925.7281 cm²
Approximately = 2926 cm²
Pls help asap giving brainliest waited for 5 hours oof
Answer:3rd answer down (top to bottom)
Step-by-step explanation: c=dπ so
c=96π
c=96*3.14=301.4
so 3rd one down is the answer!
Hope this helps!
Answer:
c
Step-by-step explanation:
because its true
Boundxvoltz967 avatar
Boundxvoltz967
19 minutes ago
Mathematics
High School
*WILL GIVE BRAINLIEST FOR BEST ANSWER DONT ANSWER IF YOU DONT KNOW AND NO VIRUS LINKS OR I WILL REPORT YOU!!!*
A computer randomly selects a number from the given set.
{2, 4, 6, 9, 16, 44, 51, 60, 78}
What is the probability that a number less than 10 is selected?
Enter your answer as a fraction, in simplest form, in the box.
P(< 10) =
Question 3 options:
A. 59
B. 49
C. 29
D. 89
Answer:
ur gay.....lollllllllllllllllllll
Step-by-step explanation:
milk
What is the volume of the composite figure?
Answer:
1428 in³
Step-by-step explanation:
To find the volume of this figure, we will need to use two formulas. The volume of a Rectangular Prism [tex](A=l*w*h)[/tex] and volume of a triangular prism.
[tex](A=\frac{1}{2} (b*h )[/tex]
If we look at the Rectangular Prism, we can find that l = 17, w = 8, and h = 5. Multiply these to find the volume:
17 × 8 × 5 = 680 in³.
Solving for the triangular prism gives us:
A = 1/2 (11 × 8 × 17)
A = 748.
Add these two volumes to find the volume of the composite figure:
748 + 680 = 1428 in³
Hope this helps!
(THERE ARE NO LINKS STOP REPORTING ME)
What is the slope of the line that passes through the points (3, -2) and (9, -2)?
a) 0
b) 3
c) -3
d) undefined
Answer:
a) 0
Step-by-step explanation:
the equation of the slope (m) for a line from two points is given as (y2-y1)/(x2-x1)
we are given the points (3,-2) and (9,-2)
we can label the points:
x1=3
y1=-2
x2=9
y2=-2
now substitute into the equation:
m=(-2--2)/(9-3)
simplify
m=(-2+2)/6
m=0/6
m=0
the slope of the line is 0, which is option a
Hope this helps!
What is the name for a company that is taxed on the individual tax forms of its owners, and never as a separate
independent entity?
A A double taxation company
B. A tax exempt corporation
C. A nonprofit corporation
D A pass-through entity
solve for each variable. PLEASE ANSWER SENSIBLY
Answer:
1.
(x+2)/x=20/12
(x+2)/x=5/3
doing crisscrossed multiplication
3x+6=5x
5x-3x=6
x=6/2=3
:.
x=3
x+2=3+2=5
A circle has a diameter of 42 inches. What is
the circumference of the circle? Use ?? for it.
(A) 33 inches
© 132 inches
D 264 inches
(B) 66 inches
Answer: C. 132 inches
Step-by-step explanation: Find the radius- 42/2=21 then use the formula C=2πR